What is it called

[KARL]

....the roller that look like a solid paint roller but has studs on its drum to leave dimple patterns in finished (but not yet set) concrete surfaces such as walkways, etc. ? I am going to look for one - any known sources ?

[heathfield]

Would you believe it's called a ''dimple roller'' !! Generally available from tool hire outlets. See...

http://www.findthenee...ing-dimple-roller.asp